Pillow



FIG. 1 is a perspective view of a pillow comprising the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front side view thereof, where the back side view is a mirror image thereof; and,

FIG. 5 is a left side view thereof, where the right side view is a mirror image thereof.

The broken lines in the figures are for purposes of illustrating environmental structure only and form no part of the claimed invention. 

CLAIM The ornamental design for a pillow, as shown and described. 